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Author: Ritu × End date: 2022 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Physiological and biochemical changes in response to iron deficiency in pearl millet
    (CCSHAU, Hisar, 2022-08) Ritu; Dr. Vinod Kumar
    Iron (Fe) is the most essential micronutrient required for plant growth and development, being required as a redox active metal involved in various physiological and metabolic processes. About 1/3rd of world soil is deficient in Fe affecting plant growth and development leading to poor yield as well as nutritional quality. It is difficult to manage Fe deficiency to plants through agronomic practices. However, recently developed Fe biofortified crop varieties with higher Fe uptake potential provides an attractive alternate for evaluation for their performance under prevailing Fe deficiency in soils. In this study, Biofortified pearl millet hybrid HHB-299 developed by CCSHAU, Hisar was used along with popular non-biofortified hybrid HHB-67(I) for evaluating these contrasting Fe containing genotypes for their growth performance under varied Fe supply (100, 50, 10 and 0 µM Fe in nutrient solution, respectively) under controlled conditions. Effect of Fe deficiency as compared to Fe sufficiency was studied at 5-leaf and panicle initiation stages of pearl millet genotypes with analysis of various morpho-physiological (root length, shoot length, chlorophyll content and leaf area) and biochemical parameters (SOD and catalase activity, total antioxidant activity, and content of MDA, H2O2, proline, phytosiderophores and Fe). It was observed that with increase in Fe deficiency under treatments T1 to T3, shoot length was decreased in the range of 0.92- 38.9% and 9.5-41.7% at 5-leaf and panicle initiation stage, respectively, for genotype HHB-67(I), as compared to control. In comparison, significantly, less decrease in shoot length was observed for biofortified genotype HHB-299. Similarly, increased rate of chlorosis was observed in both the genotypes, with increased Fe deficiency. Overall analysis of data for antioxidant activity revealed its values in the range of 18-76% at 5-leaf stage and 32.3- 56.1% at panicle initiation stage, respectively, for both the genotypes. With increase in Fe deficiency, the phytosiderophores content was noticed an increase in the range of 55.5-69.2% and 53.3-68.1% at 5-leaf and panicle initiation stages of genotype HHB-67(I), respectively. In the genotype HHB-299, it was increased up to 81.7% and 75% at 5-leaf and panicle initiation stage under increased Fe deficiency treatments. The Fe content in shoots and roots was reportedly decreased under Fe deficient conditions, for both the stages and genotypes. Based on the outcome of study, it is concluded that the contrasting pearl millet genotypes have varied biochemical and morpho-physiological responses towards Fe deficiency. Preliminary findings in this study suggested HHB-299 as better performer under given Fe deficiency treatments over HHB-67(I) owing to its less affected biochemical and morphological responses as observed. The study might have implications in development, evaluation and promotion of biofortified or Fe deficiency tolerant crops for cultivation in soils with prevailing Fe deficiency.
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    ThesisItemOpen Access
    Impact of Agricultural Price Policy of Major Food Crops in Haryana
    (CCSHAU, 2019) Ritu; Mehta, V.P.
    The present study aimed to analyze the Impact of Agricultural Price Policy on major food crops in Haryana i.e. growth, trend, gap between FHP (Farm Harvest Prices) and MSP (Minimum Support Prices) , impact of MSP on area, production and productivity of major food crops in Haryana. The data on prices and arrivals of major food crops were collected for the period 2007-08 to 2017-18 and analyzed the growth by using CGR ( Compound Growth Rate), trends by using linear trend equation, effectiveness of the price policy during the harvest periods was examined by the deviations of FHP from MSP and classified into positive and negative deviations ( to examine whether market prices ruled higher or lower than the minimum support prices). These deviations calculated by using MAPD, MAND, AMPD, AMND formulas. To study the impact of lagged Minimum Support Prices (MSPs) on the acreage allocation, production and productivity, linear Regression equations have been fitted. The results shows that the growth rate and trends of food crops prices are positive and significant in Haryana, that means food crops prices increasing over the study period, whereas wheat (4.14%), rice (5.09%) and gram (14.96%) arrivals shows positive and significant growth rate and trend. Bajra (-14.58), Barley (-9.29) show negative significant growth due to decrease in area under these crops. Maize shows positive non-significant growth i.e. 8.79 per cent whereas rapeseed/ mustard shows negative and non-significant i.e. -0.08 per cent. The value of R2 in food crops prices varies from 0.69 to 0.99 and in arrivals from 0.33 to 0.84. Gap between FHP and MSP resulted that in mostly cases FHP is higher than MSP because higher demand due to more procurement for central part than supplies does not allow the market prices to fall below MSP. In recent years, market prices ruled higher than MSP. The impact of MSP on area is higher but there is non- significant impact of MSP on productivity of food crops. The study revealed that there is significant variation in areas of food crops due to previous year‘s minimum support prices of the food crops but there is non significant variation in productivity of food crops.
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    ThesisItemOpen Access
    Study on etiological factors, dietary patterns and nutritional status of patients with kidney stones
    (College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 1996) Ritu; Dahiya, Saroj